Heads w/o a cam?
03-21-2006, 12:47 AM
#1
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Heads w/o a cam? I am looknig for soemthing the most stretable and with good gas mileage and reliability. Would it be wise for me to get a set of decent heads and not gonig with a cam, or possibly getting a small cam way later?
03-21-2006, 01:12 AM
#2
Some 5.3 heads would give you some power that would work well in the future with a cam. you will see a good gain with it just running on the stock cam. My question is why heads and not cam? You are going to still want some supporting mods either way. Are you a M6 or A4? I would suggest (if you are an A4) getting a converter before delving into the engine bay.
FWIW: Gas mileage and reliability doesnt go well in the same thread as heads and cam. lol!
FWIW: Gas mileage and reliability doesnt go well in the same thread as heads and cam. lol!
03-21-2006, 08:44 AM
#5
TECH Senior Member
Actually the best head only swap would be a AFR 205 with .040 gaskets (milled for a 11.2:1 SCR)
Gas mileage will improve as well as power and throttle response.
That is how good those babies are.
You should be able to see a good 50 rwhp on something like that.
Gas mileage will improve as well as power and throttle response.
That is how good those babies are.
You should be able to see a good 50 rwhp on something like that.
03-21-2006, 08:49 AM
#6
What he said.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
03-21-2006, 02:09 PM
#7
So, if a person just put on a set of those afr 205's and kept the stock cam, would the car behave and drive exactly like stock except for having the "extra 50 hp" over stock?
How much tuning would go into only a head swap?
So, you are saying with those heads on a full bolt-on m6 car you could get almost 400 rwhp without losing stock drivability?
thanks...
How much tuning would go into only a head swap?
So, you are saying with those heads on a full bolt-on m6 car you could get almost 400 rwhp without losing stock drivability?
thanks...
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03-21-2006, 03:42 PM
#8
Originally Posted by PREDATOR-Z
Actually the best head only swap would be a AFR 205 with .040 gaskets (milled for a 11.2:1 SCR)
Gas mileage will improve as well as power and throttle response.
That is how good those babies are.
You should be able to see a good 50 rwhp on something like that.
Gas mileage will improve as well as power and throttle response.
That is how good those babies are.
You should be able to see a good 50 rwhp on something like that.